Cannot reference an F# projeect (was: Project is unsupported by current project and can not be referenced (RC1))

I have created a ASP.NET 5 RC1 web project and specified "dnx451" as the only framework in project.json. This allows me to add a old-style (non-DNX) 4.5.1 C# class library projects as dependencies but when I try to add a similar 4.5.1 F# class library project as a reference to the web project, I get an error that the "Project is unsupported by current project and can not be referenced". Why does DNX care what language a referenced non-DNX class library is written in?

P.S. As a workaround I can add the output DLL for the F# project manually but this is not exactly ideal. I does indicate however that there is no real reason for the error to occur when adding project references. It should work!

[sayedihashimi]

Thanks for the report. I updated the title

TFS: 174090
I've added this to our internal TFS, we will reply back here soon.

[sayedihashimi]

This should be working, but there are some issues with project-to-project references. Those issues should be improved in the next release. I'll close this now but if you're still running into issues let me know.